Improvement in lamps



A. RINCKLAKE. Lamp.

No. 222,737. Pamed Dec. 16, 1879.

PETEHS, FHOTO-LITHOGRAPHER WASHINGTDN' D c.

NrrED SrA'rEs Parnnr (marca` AUGST RINCKLAKE, OF BRUNSWIGK, GERMANY.

IMPROVEMENT IN LAMPS.

Specification forming part of Letters Patent N o. 222,737, datedDecember 16, 1879; application filed July 28, 1879.

.To all whom it may concem: p

Be it known that I, AUGUsr R1NoKLAKE,of Brunswick, in the Empire ofGermany, have invented certain new and useful Improvements iu Lamps, ofwhich the following is a full and complete specification, referencebeing had to the accompanying drawings, iu which- Fignre l represents anelevation, partly in section,:of myimproved lamp; and Fig.2,atop view ofthe vapor-cap of the same.

Similar letters of reference indicate corresponding parts.

The object of this invention is to so improve the petroleum-lamps ingeneral use that the so-ealled sweating7' of the same is entirelyprevented. This sweating of the lamps is caused, first, by the leakageof oil through the cement joint between the neck of the lampbowl and thecollar into which the burner is screwed; second, by the capillary actionwhich takes place around the threaded portion of the burner which isscrewed into the collar; and, third, by the passa-ge of oil from thewiek to the spur-wheels, and then along the shaft of the same to thehand-wheel by which the wiek is adjusted, and from which it drips downonto the bowl. Besides these causes, there is also a eonstantoverflowing of petroleum at the top of the burner, arising from thecapillary action of the wiek.

To obviate these various causes of the sweatin g of lamps, the lamp-bowlis provided, first, with an annular gutter or drain, by which the oil isprevented from spreading1 over the surface of the bowl, and conducted byopeniugs in the bottom of the gutter, said openings having'downwardly-extending tubes back into the bowl. The shaft of thewick-adjusting spur- Wheels is next provided with a (hip-disk, that isarranged outside of the burner proper and ble manner into the bowl whenthe same is of sheet metal. i Q

At the bottom of the gutter B are arranged one or more openings, b', bywhich the drippin g's that are collected in the gutter may be returnedto the interior of the bowl. The opening` or openings are provided withdown- \\'*arclly-eXte11di1ig narrow tubes b', in which, owing to theircapillary action, always a small quantity of oil is retained. This oilprevents the passage of the vapors that collect iu the upper part of thebowl to the outside. In other words, the oil forms areliable vaporseal.This gutter catehes, in the first place, all the oil which makes its waythrough the cement joint of the neclc of the bowl and the collar, alsothat which passes by eapillary action between the screw end of theburner and collar, and, finally, that which rnns over the top of theburner.

The shaft of the spur-wheels by which the wick is raised or lowered isprovided with a drip-disk, O, vertically above the gutter B. Thisdrip-disk returns the oil that passes from the wiek to the spur-wl1eels,and then along the shaft to the outside, back to the gutter, and .thenceinto the bowl.

A vapor-eap, D, extends concentrically to the neck of the bowl, and isfitted to the exterior part of the gutter and to the lower `part of theburner above the drip-disk, it being' preferably slotted at the side forthe spurwheel shaft, so as to be readily removed forV cleaning` when theburner is unscrewed from the bowl. The vapor-cap D is fitted by anannular rim, d, around the hurner, the rim having notches cl', foradmitting' the passage of drip-oil from the exterior of the burner andalong the collar to the gut-ter and-bowl.

As the gutter forms a kind of fence or barrier that encircles the burnerand neck of the howl, it prevents the oil from spreading` over the outersurface of the bowl. This gutter forms, therefore, the essential featureof my invention, to which the drip-disk and vaporcap are the necessaryaccessories. By these simple additons an effective remedy for one of themost disagreeable and annoying features of petroleum -lamps is provided,and thereby their cleanliness and their more general application areconsiderably promoted.

I am aware that lamp-bowls withcollectinggutters around the neck of thebowl are old. I am also aware that lamp-bowls with gutters having'discharge-openings have been used; but neither construction prevents thesweat ing of the lamp-bowls, the latter even increasing it, as thevapors pass freely to the outside and are condensed on the outer surfaceof the bowls.

Having` th ns described inyinvention, I claim as new and desire tosecure by Letters Patent- 1. A lamp-bowl provided with an annnlar gntteror drain around the neck of the bowl, the gntter having one or moredischarge-openngs, and a downwardly-extending tube or tnbes, whichconduct the oil coilected in the gutter to the inside of the bowl, andform a vapor-seattor the bowl, snbstantially as described.

2. The combination of a lamp-bowl having an annnlar gutter or drain anda downwardlyextending` dischargc tube or tubes with a dripdisk arrangedoutside of the burner on the spur-Wheel shaft and verticall y above thegutter, snbstant-ially as set forth.

3. The combination of a lamp-bowl having an annular gutter or drain andadownwardlyextending discharge tube or tu'bes With a burnerencirelingva-por-eap that is fitted to the onter circnmference of the gutter,substantia-Ily as speeified.

4. The combination of a lamp-bowl having an annular gntter or drain anda downwardlyextending discharg'e tube or tubes with a dripdisk. that isarranged outside of the burner on the spur-wheel' shaft, and With avapor-cap which is fitted around the bnrner and adapted to inclosedrip-disk and gutter, as set forth.

In testimony that 1 ela-im the foregoing' I hereunto set my hand.

Brunswick, April 5, 1879.

AUG. RINGKLAKE. Witnesses: WILLIAMs O. FOX, J o1-1s. KRAGKE.

